28 lines
991 B
Scheme
28 lines
991 B
Scheme
;; The first three lines of this file were inserted by DrScheme. They record metadata
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;; about the language level of this file in a form that our tools can easily process.
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#reader(lib "htdp-advanced-reader.ss" "lang")((modname gui) (read-case-sensitive #t) (teachpacks ()) (htdp-settings #(#t constructor repeating-decimal #t #t none #f ())))
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(require (lib "gui.ss" "htdp"))
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;; type in text, choose, click okay, watch message field change, close
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(define msg (make-message "Hello World"))
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(define txt (make-text "Enter your password please"))
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(define chc (make-choice (list "Choose something" "Or other")))
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(define call-back
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(lambda (x)
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(begin
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(draw-message msg (format "~s ~s~n" (choice-index chc) (text-contents txt)))
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(draw-message msg "Bye World"))))
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(define (destroy x) (hide-window x))
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(define w
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(create-window
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(list (list txt msg chc)
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(list (make-button "Okay?" call-back))
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(list (make-button "Close" (lambda (x) (hide-window w)))))))
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